Light collector for photo-stimulable phosphor imaging system

Details Light collector for photo-stimulable phosphor imaging system Light collector for photo-stimulable phosphor imaging system

1986-10-14

1988-05-10

Howell, Janice A.

Radiant energy

Automatic/serial detection of similar sources

250228, 2504841, G01T 1105

Patent

active

047437596

ABSTRACT:
A light collector for collecting and detecting light emitted from a photo-stimulable phosphor sheet in a photo-stimulable phosphor imaging system includes a roof-mirror light collector having a bottom roof-mirror extending the width of the photo-stimulable phosphor sheet, and a top roof-mirror positioned over the bottom roof-mirror to define a mirror box having a nearly square cross-section. The roof-mirrors define slots along their peaks for passing a scanning beam of stimulating radiation through the light box to the surface of the photo-stimulable phosphor sheet, and for admitting emitted light from the photo-stimulable phosphor sheet into the light box. Prestimulation in such a light collector is reduced by making the slot adjacent the photo-stimulable phosphor sheet equal to or narrower than the opposite slot. Predischarge in a light collector is reduced by providing a light trap adjacent the slot that is positioned near the surface of the photo-stimulable phosphor sheet.

REFERENCES:
patent: Re31847 (1985-03-01), Luckey
patent: 3670157 (1972-06-01), Bragg
patent: 4321630 (1982-03-01), Kramer
patent: 4346295 (1982-08-01), Tanaka et al.
patent: 4453180 (1984-06-01), Juergensen
patent: 4568984 (1986-02-01), Juergensen et al.
patent: 4629890 (1986-12-01), Goto et al.
D. H. Cronquist, "Hollow Reflecting Light Collector Tube", IBM Technical Disclosure Bulletin, vol. 17, No. 3, (Aug., 1974), p. 966.

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